SPAG5 and neurodegenerative disease: USP14 is a regulator of de‐ubiquitination and has been reported to be activated through AKT/mTOR pathway and negatively regulate autophagy by K48 de‐ubiquitination in neurodegenerative diseases.32 Hence, we speculated that SPAG5‐AS1 might regulate SPAG5 through USP14.